| 摘要 |
A process is described for making 1,4-diamino-2-methoxymethylbenzene of formula (I), or a physiologically compatible salt of 1,4-diamino-2-methoxy-methylbenzene, of formula (I): wherein n is a number from 0 to 2 and HX represents an inorganic or organic acid. The process includes reacting 2-methoxymethyl-4-nitrophenol with a halogenacetamide to form 2-(2-methoxymethyl-4-nitrophenoxy)acetamide; rearranging the 2-(2-methoxymethyl-4-nitrophenoxy)acetamide to form 2-methoxymethyl-4-nitroaniline and then catalytically hydrogenating the 2-methoxymethyl-4-nitroaniline and, when n=1 or 2, subsequently reacting with the inorganic or organic acid, to form the 1,4-diamino-2-methoxymethylbenzene of formula (I), or the salt if n=1 or 2. Compositions and methods of dyeing hair containing the 1,4-diamino-2-methoxymethylbenzene or its salt are also described.
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